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Poster: Administrator, Curator, or StaffTyler Date: Aug 23, 2004 4:06am
Forum: etree Subject: Re: what's VBR MP3?

Yes, http://www.fact-index.com/v/va/variable_bit_rate.html

and the short answer is that they are the smallest file size / high quality you can achieve. kinda like a middle ground between file size and quality. But they sound very good, almost as good (if not audibly the same) as the loss-less files. Even if you're on dial up i say wait the extra few minutes for the VBR mp3 to download. the 64kbps mp3's are as great a quality.

tyler

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Poster: plonk420 Date: Aug 23, 2004 9:07am
Forum: etree Subject: Re: what's VBR MP3?

not really. http://doc.hydrogenaudio.org/wikis/hydrogenaudio/VBR/view?searchterm=vbr

VBR encoding tries to maintain a constant quality level. for example, say you have some strings or acoustic guitar. those instruments have pretty "pure" waveforms and thus more compression is achieveable while maintaining high quality. add in cymbals or electric guitars which use a wider band of audible frequencies and it's a heck of a lot more challenging to compress at the same rate without losing quality, so to compensate, more data needs to be allocated for when there's more noise or more frequencies "in use" or active at the time.

so, in talking/typing this out, i realize if classical (or highly acoustic music) is the only genre you listen to, then yes, VBR (should) produce a smaller MP3. however, almost none of my collection is classical...

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Poster: samson Date: Aug 23, 2004 9:01am
Forum: etree Subject: Re: what's VBR MP3?

I thought ogg was the best quality for the small size? Not that I go use either, but is there a difference between ogg and VBR?

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Poster: plonk420 Date: Aug 23, 2004 9:08am
Forum: etree Subject: Re: what's VBR MP3?

OGG is a file format related to the audio compression world. VBR is one of two methods of compression in the audio compression world. VBR is variable bitrate, CBR is constant bitrate. there's a lot to be learned inbetween this brief explaination up here and the next paragraph, but if you're curious, i'd suggest doing some reading at HydrogenAudio.org. specifically http://www.hydrogenaudio.org/forums/index.php?s=8facd87a8bab48536b9b3343221d70d5&act=ST&f=5&t=7516

OGG is pretty much VBR unless you force it to be otherwise (which is highly discouraged). as for quality, OGG is a great choice. 100% free, even if you don't pay for an MP3 encoder (which isn't really legal... some care about that, some don't) and very competitive to MP3 encoders. OGG finished best in this double blind test, too: http://www.rjamorim.com/test/multiformat128/results.html